<template>
	<view :class="Visible ? 'product-popup open' : 'product-popup close'" @touchmove.stop.prevent="" @click="closePopup">
		<view class="popup-bg"></view>
		<view class="main" v-on:click.stop>
			<view class="header">
				<image :src="form.show_sku.sku_image" mode="aspectFit" class="avt"></image>
				<view class="price d-s-c">
					<text class="f24">所需积分</text>
					<text class="num fb f34">{{ form.show_sku.point_num }}</text>
					<text>+</text>
					<text class="old-price">¥{{ form.show_sku.point_money }}</text>
				</view>
				<view class="stock">库存：{{ form.show_sku.point_stock }}</view>
				<view class="p-20-0">{{ selectSpec }}</view>
				<view class="close-btn" @click="closePopup"><text class="icon iconfont icon-jiantoushang"></text></view>
			</view>

			<view class="body">
				<!--选择数量-->
				<view class="level-box count_choose">
					<text class="key">数量</text>
					<view class="d-s-c">
						<view class="icon-box minus d-c-c" @click="sub()" :class="{ 'num-wrap': !issub }"><text class="icon iconfont icon-jian"></text></view>
						<view class="text-wrap"><input type="text" v-model="form.show_sku.sum" value="" /></view>
						<view class="icon-box plus d-c-c" :class="{ 'num-wrap': !isadd }" @click="add()"><text class="icon iconfont icon-jia"></text></view>
					</view>
				</view>

				<!--规格-->
				<view>
					<scroll-view scroll-y="true" class="specs mt20" style="max-height: 600rpx;" v-if="form.specData !=null">
						<view class="specs mt20" v-for="(item_attr, attr_index) in form.specData.spec_attr" :key="attr_index">
							<view class="specs-hd p-20-0">
								<text class="f24 gray9">{{ item_attr.group_name }}</text>
							</view>
							<view class="specs-list">
								<button
									type="primary"
									:disabled="item.disabled"
									:class="item.checked ? 'btn-red' : 'btn-gray-border'"
									v-for="(item, item_index) in item_attr.spec_items"
									:key="item_index"
									@click="selectAttr(attr_index, item_index)"
								>
									{{ item.spec_value }}
								</button>
							</view>
						</view>
					</scroll-view>
				</view>
			</view>
			<view class="btns"><button type="primary" class="confirm-btn" @click="confirmFunc(form)">确认</button></view>
		</view>
	</view>
</template>

<script>
import { judgeSelect } from '@/common/specSelect.js';
export default {
	data() {
		return {
			/*是否可见*/
			Visible: false,
			form: {
				detail: {
					product_sku: {},
					show_sku: {},
					show_point_sku: {
						point_price: 0
					}
				},
				show_sku: {
					sum: 1
				}
			},
			/*当前商品总库存*/
			stock: 0,
			/*选择提示*/
			selectSpec: '',
			/*规格是否选择完整*/
			isAll:false,
			/*是否改变*/
			is_change:false
		};
	},
	props: ['isPopup', 'productModel'],
	onLoad() {},
	mounted() {},
	computed: {
		/*判断增加数量*/
		isadd: function() {
			return this.form.show_sku.sum >= this.stock || this.form.show_sku.sum >= this.form.detail.limit_num;
		},

		/*判断减少数量*/
		issub: function() {
			return this.form.show_sku.sum <= 1;
		}
	},
	watch: {
		isPopup: function(n, o) {
			if (n != o) {
				this.Visible = n;
				this.form = this.productModel;
				this.initShowSku();
			}
		},

		'form.specData': {
			handler(n, o) {
				let str = '',select='';
				this.isAll=true;
				if (n) {
					for (let i = 0; i < n.spec_attr.length; i++) {
						if (this.form.productSpecArr[i] == null) {
							this.isAll=false;
							str += n.spec_attr[i].group_name+' ';
						}else{
							n.spec_attr[i].spec_items.forEach(item=>{
								if(this.form.productSpecArr[i]==item.item_id){
									select+= '\"'+item.spec_value+'\" ';
								}
							});
						}
					}
					if(!this.isAll){
						str='请选择: '+str;
					}else{
						select='已选: '+select;
					}
				}
				this.selectSpec =this.isAll?select:str;
			},
			deep: true,
			immediate:true
		}
	},
	methods: {
		/*关闭弹窗*/
		closePopup() {
			this.$emit('close', {});
		},

		/*确认提交*/
		confirmFunc() {
			if (this.form.specData != null&&!this.isAll) {
				uni.showToast({
					title: '请选择规格',
					icon: 'none',
					duration: 2000
				});
				return;
			}
			this.createdOrder();
		},

		/*初始化*/
		initShowSku() {
			this.form.show_sku.sku_image = this.form.detail.product.image[0].file_path;
			this.form.show_sku.point_price = this.form.detail.point_price;
			this.form.show_sku.product_sku_id = 0;
			this.form.show_sku.line_price = this.form.detail.line_price;
			this.form.show_sku.point_stock = this.form.detail.stock;
			this.form.show_sku.point_product_sku_id = 0;
			this.form.show_sku.point_num = this.form.detail.sku[0].point_num;
			this.form.show_sku.point_money = this.form.detail.sku[0].point_money;
			this.form.show_sku.product_sku_id = 0;
			this.stock = this.form.detail.stock;
		},

		/*选择属性*/
		selectAttr(attr_index, item_index) {
			let self = this;
			let items = self.form.specData.spec_attr[attr_index].spec_items;
			let curItem = items[item_index];
			if (curItem.checked) {
				curItem.checked = false;
				self.form.productSpecArr[attr_index] = null;
			} else {
				for (let i = 0; i < items.length; i++) {
					items[i].checked = false;
				}
				curItem.checked = true;
				self.form.productSpecArr[attr_index] = curItem.item_id;
			}

			/*判断哪些规格可以选*/
			judgeSelect(self.form.specData.spec_attr, attr_index, self.form.productSpecArr, self.form.productSku);
			
			let isall=true;
			for(let i=0;i<self.form.productSpecArr.length;i++){
				let item=self.form.productSpecArr[i];
				if(item==null){
					isall=false;
					break;
				}
			}
			
			if(!isall){
				self.initShowSku();
				return;
			}
			
			// 更新商品规格信息
			self.updateSpecProduct();
		},

		/*更新商品规格信息*/
		updateSpecProduct() {
			let self = this;
			let specSkuId = self.form.productSpecArr.join('_');
			// 查找skuItem
			let spec_list = self.form.specData.spec_list,
				skuItem = spec_list.find(val => {
					return val.spec_sku_id == specSkuId;
				});
			// 记录product_sku_id
			// 更新商品价格、划线价、库存
			if (typeof skuItem === 'object') {
				let point_sku_list = self.form.detail.sku,
					pointSkuItem = point_sku_list.find(val => {
						return val.product_sku_id == skuItem.product_sku_id;
					});
					
				console.log(pointSkuItem);
				/*保存当前规格*/
				self.stock = pointSkuItem.point_stock;
				if (self.form.show_sku.sum > self.stock) {
					self.form.show_sku.sum = self.stock > 0 ? self.stock : 1;
				}

				self.form.show_sku.line_price = skuItem.spec_form.product_price;
				self.form.show_sku.product_sku_id = skuItem.spec_sku_id;
				self.form.show_sku.point_price = pointSkuItem.point_price;
				self.form.show_sku.point_product_sku_id = pointSkuItem.point_product_sku_id;
				self.form.show_sku.point_stock = pointSkuItem.point_stock;
				
				if (skuItem.spec_form.image_id > 0) {
					self.form.show_sku.sku_image = skuItem.spec_form.image_path;
				} else {
					self.form.show_sku.sku_image = self.form.detail.product.image[0].file_path;
				}
			}
		},

		/*创建订单*/
		createdOrder() {
			let self = this;
			let point_product_id = self.form.detail.point_product_id;
			let num = self.form.show_sku.sum;
			let product_sku_id = self.form.show_sku.product_sku_id;
			let point_product_sku_id = self.form.show_sku.point_product_sku_id;
			
			uni.navigateTo({
				url:
					'/pages/order/confirm-order?product_num=' +
					num +
					'&point_product_id=' +
					point_product_id +
					'&product_sku_id=' +
					product_sku_id +
					'&point_product_sku_id=' +
					point_product_sku_id +
					'&order_type=points'
			});
			
		},

		/*商品增加*/
		add() {
			if (this.stock <= 0) {
				return;
			}
			if (this.form.show_sku.sum >= this.stock) {
				uni.showToast({
					title: '数量超过了库存',
					icon: 'none',
					duration: 2000
				});
				return false;
			}
			if (this.form.show_sku.sum >= this.form.detail.limit_num) {
				uni.showToast({
					title: '数量超过了限购数量',
					icon: 'none',
					duration: 2000
				});
				return false;
			}
			this.form.show_sku.sum++;
		},

		/*商品减少*/
		sub() {
			if (this.stock <= 0) {
				return;
			}
			if (this.form.show_sku.sum < 2) {
				uni.showToast({
					title: '商品数量至少为1',
					icon: 'none',
					duration: 2000
				});
				return false;
			}
			this.form.show_sku.sum--;
		}
	}
};
</script>

<style lang="scss">
.product-popup {
	}
	
	.product-popup .popup-bg {
		position: fixed;
		top: 0;
		right: 0;
		bottom: 0;
		left: 0;
		background: rgba(0, 0, 0, .6);
		z-index: 99;
	}
	
	.product-popup .main {
		position: fixed;
		width: 100%;
		bottom: 0;
		min-height: 200rpx;
		// max-height: 900rpx;
		background-color: #fff;
		transform: translate3d(0, 980rpx, 0);
		transition: transform .2s cubic-bezier(0, 0, .25, 1);
		//bottom: env(safe-area-inset-bottom);
		z-index: 99;
	}
	
	.product-popup.open .main {
		transform: translate3d(0, 0, 0);
		z-index: 99;
	}
	
	.product-popup.close .popup-bg {
		display: none;
	}
	
	.product-popup.close .main {
		display: none;
		z-index: -1;
	}
	
	
	.product-popup .header {
		min-height: 120rpx;
		padding: 10rpx 0 10rpx 250rpx;
		position: relative;
		border-bottom: 1px solid #eeeeee;
	}
	
	.product-popup .header .avt {
		position: absolute;
		top: -80rpx;
		left: 30rpx;
		width: 200rpx;
		height: 200rpx;
		border: 2px solid #ffffff;
		background: #ffffff;
	}
	
	.product-popup .header .stock {
		font-size: 24rpx;
		color: #999999;
	}
	
	.product-popup .close-btn {
		position: absolute;
		width: 40rpx;
		height: 40rpx;
		top: 10rpx;
		right: 10rpx;
	}
	
	.product-popup .price {
		height: 80rpx;
		color: $dominant-color;
		font-size: 30rpx;
	}
	
	.product-popup .price .num {
		padding: 0 4rpx;
		font-size: 50rpx;
	}
	
	.product-popup .old-price {
		margin-left: 10rpx;
		font-size: 30rpx;
		color: #999999;
		text-decoration: line-through;
	}
	
	.product-popup .body {
		padding: 20rpx 30rpx 100rpx 30rpx;
		// max-height: 600rpx;
		overflow-y: auto;
	}
	
	.product-popup .level-box {
		display: flex;
		justify-content: space-between;
		align-items: center;
	}
	
	.product-popup .level-box .key {
		font-size: 24rpx;
		color: #999999;
	}
	
	.product-popup .level-box .icon-box {
		width: 60rpx;
		height: 60rpx;
		border: 1px solid #dddddd;
		background: #f7f7f7;
	}
	
	.product-popup .num-wrap .iconfont {
		color: #666;
	}
	
	.product-popup .num-wrap.no-stock .iconfont {
		color: #cccccc;
	}
	
	.product-popup .level-box .text-wrap {
		margin: 0 4rpx;
		height: 60rpx;
		border: 1px solid #dddddd;
		background: #f7f7f7;
	}
	
	.product-popup .level-box .text-wrap input {
		padding: 0 10rpx;
		height: 60rpx;
		line-height: 60rpx;
		width: 80rpx;
		text-align: center;
	}
	
	.specs .specs-list {
		display: flex;
		justify-content: flex-start;
		align-items: center;
		flex-wrap: wrap;
	}
	
	.specs .specs-list button {
		margin-right: 10rpx;
		margin-bottom: 10rpx;
		font-size: 24rpx;
	}
	
	.specs .specs-list button:after,
	.product-popup .btns button,
	.product-popup .btns button:after {
		border: 0;
		border-radius: 0;
	}
	.product-popup .btns{
		position: absolute;
		bottom: 0;
		width: 100%;
	}
	.product-popup .btns .confirm-btn {
		height: 88rpx;
		line-height: 88rpx;
		background: $dominant-color;
	}
</style>
